The question "Is there an app for that?" is actually the challenge in today's Lunchtime Quiz at mental_floss. You'll be given descriptions of something a smart phone might or might not do, and you decide whether that's an existing app to do it or not. This is one of those quizzes that will be obsolete soon, as someone will take these ideas and make apps for them, if they don't already exist! I only got three out of ten right. If you have a smart phone, you will do better. Link